1、软件环境：Windows、ActiveState Perl 5.8.6、Winpcap 3.1 Beta；
2、所需Perl 模块：Net::Pcap、Net::PcapUtils、NetPacket
>ppm install NetPacket
>ppm install http://www.bribes.org/perl/ppm/Net-Pcap.ppd
>ppm install http://www.bribes.org/perl/ppm/Net-PcapUtils.ppd
其中Net::Pcap是Winpcap的接口，Net::PcapUtils提供常用的抓包函数，NetPacket用来解析各种协议结构；
3、仅分析ICMP和TCP协议结构，且把Header结构用文本表格的方式打印下来；
4、提供源地址、目的地址、源端口、目的端口组合的过滤方式；
5、如果需要Dump ARP协议的数据包，则需要按照额外的模块，NetPacket当前不支持ARP协议的解析；
6、可使用perl2exe工具将其转化到exe文件格式；

(0)、C:\Perl\scripts\iSniffer>packetDump.pl -h

#Please set the width of CMD window to 100 ＃为了格式化显示请将窗口长度设置到100
> C:\Perl\scripts\iSniffer\packetDump.pl [hvd:p:i:s:t:u::x:y:z:]
-h print this help
-v print more information ＃显示更多的信息
-d choice device, [1,2,3...] ＃指定设备编号
-p 1->icmp, 6->tcp ＃分析哪种协议，ICMP或TCP
-i icmp type ＃-p 1前提下指定ICMP的Type
0 Echo Reply
3 Destination Unreachable
4 Source Quench
5 Redirect
8 Echo
11 Time Exceeded
12 Parameter Problem
13 Timestamp
14 Timestamp Reply
17 Address Mask Request
18 Address Mask Reply
30 Traceroute
37 Domain Name Request
-s x.x.x.x, source ip ＃指定源地址
-t x.x.x.x, dest ip ＃指定目的地址
-u x.x.x.x, source/dest ip ＃源地址或目的地址均可
-x source port ＃指定源端口
-y dest port ＃指定目的端口
-z source/dest port ＃源端口或目的端口均可
v1.0, by shanleiguang@he.chinamobile.com

（1）、>packetDump.plC:\Perl\scripts\iSniffer>packetDump.pl

+-----------------------------------------------------------------------------------+
| Supported Devices |
+---+------+------------------------------------------------------------------------+
| 1 | dev | \Device\NPF_GenericNdisWanAdapter |
+---+------+------------------------------------------------------------------------+
| | desc | Generic NdisWan adapter |
+---+------+------------------------------------------------------------------------+
| 2 | dev | \Device\NPF_{6A06FB50-D0BC-4908-A502-90322DC74B78} |
+---+------+------------------------------------------------------------------------+
| | desc | Intel(R) PRO/100 VE Network Connection (Microsoft's Packet Scheduler) |
+---+------+------------------------------------------------------------------------+
| 3 | dev | \Device\NPF_{762D2D02-BA2C-46E1-9C54-396D8B79055F} |
+---+------+------------------------------------------------------------------------+
| | desc | WAN (PPP/SLIP) Interface |
+---+------+------------------------------------------------------------------------+

Which device u want to sniff? [1,2,3] ＃选择希望Dump的设备，下一次可直接用-d来指配

（2）、C:\Perl\scripts\iSniffer>packetDump.pl -d 3 -p 1
2005/07/31 11:15:58, Sniffing on \Device\NPF_{762D2D02-BA2C-46E1-9C54-396D8B79055F}... ...
=No.1===========================================================================
+------------------------------------------------+
| IP Header |
+--------+------------+---------+----------------+
| ver | 4 | hlen | 5 |
+--------+------------+---------+----------------+
| tos | 0 | len | 60 |
+--------+------------+---------+----------------+
| flags | 0 | foffset | 0 |
+--------+------------+---------+----------------+
| id | 50223 | ttl | 128 |
+--------+------------+---------+----------------+
| src_ip | 60.6.41.89 | dest_ip | 64.233.189.104 |
+--------+------------+---------+----------------+
| proto | 1 | cksum | 4833 |
+--------+------------+---------+----------------+
+--------------------------------------------------------+
| ICMP Message |
+------+------+-------+----------------------------------+
| type | code | cksum | data |
+------+------+-------+----------------------------------+
| 8 | 0 | 17756 | abcdefghijklmnopqrstuvwabcdefghi |
+------+------+-------+----------------------------------+
=No.2===========================================================================
+------------------------------------------------+
| IP Header |
+--------+----------------+---------+------------+
| ver | 4 | hlen | 5 |
+--------+----------------+---------+------------+
| tos | 0 | len | 60 |
+--------+----------------+---------+------------+
| flags | 0 | foffset | 0 |
+--------+----------------+---------+------------+
| id | 50223 | ttl | 242 |
+--------+----------------+---------+------------+
| src_ip | 64.233.189.104 | dest_ip | 60.6.41.89 |
+--------+----------------+---------+------------+
| proto | 1 | cksum | 41184 |
+--------+----------------+---------+------------+
+--------------------------------------------------------+
| ICMP Message |
+------+------+-------+----------------------------------+
| type | code | cksum | data |
+------+------+-------+----------------------------------+
| 0 | 0 | 19804 | abcdefghijklmnopqrstuvwabcdefghi |
+------+------+-------+----------------------------------+

... ...

（3）、C:\Perl\scripts\iSniffer>packetDump.pl -d 3 -p 6 －u xxx.xxx.xxx.xxx -z 23

7、源代码

#!C:\Perl\bin\perl.exe
#By shanleiguang@he.chinamobile.com, 2005/07
#ActiveState Perl 5.8.6, Winpcap 3.1 beta
#ppm install NetPacket
#ppm install http://www.bribes.org/perl/ppm/Net-Pcap.ppd
#ppm install http://www.bribes.org/perl/ppm/Net-PcapUtils.ppd
use strict;

use Net::PcapUtils;
use NetPacket::Ethernet;
use NetPacket::IP;
use NetPacket::ICMP;
use NetPacket::TCP;

use Getopt::Std;
use POSIX qw(strftime);

my %opts;
getopts('hvd:p:i:s:t:u:x:y:z:', \%opts);

print_help() and exit if(defined $opts{'h'});
print_help() and exit if(defined $opts{'d'} and ($opts{'d'} !~ m/^\d+$/));
print_help() and exit if(defined $opts{'p'} and ($opts{'p'} !~ m/^\d+$/));
print_help() and exit if(defined $opts{'i'} and ($opts{'i'} !~ m/^\d+$/));
print_help() and exit if(defined $opts{'s'} and ($opts{'s'} !~ m/^\d+.\d+.\d+.\d+$/));
print_help() and exit if(defined $opts{'t'} and ($opts{'t'} !~ m/^\d+.\d+.\d+.\d+$/));
print_help() and exit if(defined $opts{'u'} and ($opts{'u'} !~ m/^\d+.\d+.\d+.\d+$/));
print_help() and exit if(defined $opts{'x'} and ($opts{'x'} !~ m/^\d+$/));
print_help() and exit if(defined $opts{'y'} and ($opts{'y'} !~ m/^\d+$/));
print_help() and exit if(defined $opts{'z'} and ($opts{'z'} !~ m/^\d+$/));

$opts{'p'} = 6 if not defined($opts{'p'});

my $choice;
my %devices = get_supported_devices();

if(defined $opts{'d'}) {
$choice = $opts{'d'};
} else {
print_supported_devices();

print "\nWhich device u want to sniff? [";
print join ',', sort {$a <=> $b} (keys %devices) and print '] ';

$choice = <STDIN>;
chomp($choice);
}

die "Invalid Device!\n" if not defined($devices{$choice});

my $pkt_descriptor = Net::PcapUtils::open(
FILTER => 'ip',
SNAPLEN => 1500,
PROMISC => 1,
DEV => $devices{$choice}{'dev'},
);

die "Net::PcapUtils::open returned: $pkt_descriptor\n" if (!ref($pkt_descriptor));

print strftime "%Y/%m/%d %H:%M:%S, ", localtime;
print "Sniffing on $devices{$choice}{'dev'}... ...\n";

my ($next_packet, %next_header);
my $packet_counter = 0;

while (($next_packet, %next_header) = Net::PcapUtils::next($pkt_descriptor)) {
my ($ip_obj, $tcp_obj, $icmp_obj);
$ip_obj = NetPacket::IP->decode(NetPacket::Ethernet::eth_strip($next_packet));

next if (defined $opts{'s'} and ($ip_obj->{'src_ip'} ne $opts{'s'}));
next if (defined $opts{'t'} and ($ip_obj->{'dest_ip'} ne $opts{'t'}));
next if (defined $opts{'u'} and ($ip_obj->{'src_ip'} ne $opts{'u'})
and ($ip_obj->{'dest_ip'} ne $opts{'u'}));

next if ($ip_obj->{'proto'} != $opts{'p'});

if ($ip_obj->{'proto'} == 1) {
$icmp_obj = NetPacket::ICMP->decode($ip_obj->{'data'});
next if (defined $opts{'i'} and ($icmp_obj->{'type'} ne $opts{'i'}));
}

if ($ip_obj->{'proto'} == 6) {
$tcp_obj = NetPacket::TCP->decode($ip_obj->{'data'});
next if (defined $opts{'x'} and ($tcp_obj->{'src_port'} ne $opts{'x'}));
next if (defined $opts{'y'} and ($tcp_obj->{'dest_port'} ne $opts{'y'}));
next if (defined $opts{'z'} and ($tcp_obj->{'src_port'} ne $opts{'z'})
and ($tcp_obj->{'dest_port'} ne $opts{'z'}));
}

$packet_counter++;

print "=No.$packet_counter=", '=' x (80 - length("=No.$packet_counter=")), "\n";
if($opts{'v'}) {
print display_capinfo(\%next_header);
print display_frame_hdr(NetPacket::Ethernet->decode($next_packet));
}
print display_ip_hdr($ip_obj);
print display_icmp_msg($icmp_obj) if ($ip_obj->{'proto'} == 1);
print display_tcp_hdr($tcp_obj) if ($ip_obj->{'proto'} == 6);
}

sub print_help {
print <<HELP

#Please set the width of CMD window to 100
> $0 [hvd:p:i:s:t:u::x:y:z:]
-h print this help
-v print more information
-d choice device, [1,2,3...]
-p 1->icmp, 6->tcp
-i icmp type
0 Echo Reply
3 Destination Unreachable
4 Source Quench
5 Redirect
8 Echo
11 Time Exceeded
12 Parameter Problem
13 Timestamp
14 Timestamp Reply
17 Address Mask Request
18 Address Mask Reply
30 Traceroute
37 Domain Name Request
-s x.x.x.x, source ip
-t x.x.x.x, dest ip
-u x.x.x.x, source/dest ip
-x source port
-y dest port
-z source/dest port
v1.0, by shanleiguang\@he.chinamobile.com

HELP
}

sub get_supported_devices {
my ($error, %description, %devices);
my $index = 0;

foreach (Net::Pcap::findalldevs(\$error, \%description)) {
die "Net::Pcap::finealldevs Error!\n" if defined $error;
$index++;
$devices{$index}{'dev'} = $_;
$devices{$index}{'desc'} = $description{$_};
}

return %devices;
}

sub print_supported_devices {
my ($error, %description);
my (@indexes, @fields, @values);
my $index = 0;

foreach (Net::Pcap::findalldevs(\$error, \%description)) {
die "Net::Pcap::finealldevs Error!\n" if defined $error;
$index++;
push @indexes, ($index, ' ');
push @fields, ('dev', 'desc');
push @values, ($_, $description{$_});
}

print "\n", pretty_table('Supported Devices', (\@indexes, \@fields, \@values));
}

sub display_capinfo {
my $capinfo = shift;
my @capinfo;
push @capinfo, [$_, $capinfo->{$_}] foreach (qw(tv_sec tv_usec len caplen));
return pretty_table('Pcap Info', @capinfo);
}

sub display_frame_hdr {
my $frame_obj = shift;
my @eth_frame;
push @eth_frame, [$_, $frame_obj->{$_}] foreach (qw(src_mac dest_mac type));
return pretty_table('Ethernet Frame Header', @eth_frame);
}

sub display_ip_hdr {
my $ip_obj = shift;
my @ip_hdr;
push @ip_hdr, [qw(ver tos flags id src_ip proto)];
push @{$ip_hdr[1]}, $ip_obj->{$_} foreach (qw(ver tos flags id src_ip proto));
push @ip_hdr, [qw(hlen len foffset ttl dest_ip cksum)];
push @{$ip_hdr[3]}, $ip_obj->{$_} foreach (qw(hlen len foffset ttl dest_ip cksum));
return pretty_table('IP Header', @ip_hdr);
}

sub display_icmp_msg {
my $icmp_obj = shift;
my @icmp_msg;
$icmp_obj->{'data'} =~ s/\W//g;
push @icmp_msg, [$_, $icmp_obj->{$_}] foreach (qw(type code cksum data));
return pretty_table('ICMP Message', @icmp_msg);
}

sub display_tcp_hdr {
my $tcp_obj = shift;
my @tcp_hdr;
push @tcp_hdr, [qw(src_port seqnum hlen flags)];
push @{$tcp_hdr[1]}, $tcp_obj->{$_} foreach (qw(src_port seqnum hlen flags));
push @tcp_hdr, [qw(dest_port acknum reserved winsize)];
push @{$tcp_hdr[3]}, $tcp_obj->{$_} foreach (qw(dest_port acknum reserved winsize));
return pretty_table('TCP Header', @tcp_hdr);
#my $data = unpack 'a*', $tcp_obj->{'data'};
#print "$data\n";
}

sub display_udp_hdr {
my $udp_obj = shift;
my @udp_hdr;
push @udp_hdr, [$_, $udp_obj->{$_}] foreach (qw(src_port dest_port cksum));
return pretty_table('UDP Header', @udp_hdr);
}

sub pretty_table {
# pretty_table($aString, @aList); @aList = ( [...], [...] );
my ($title, @data) = @_;
my @temp;
my @maxLength;
my $rowLength;
my $indent = 4;
my $theTable;

foreach my $col (0..$#{$data[0]}) { push @{$temp[$col]}, $_->[$col] foreach (@data); }
$maxLength[$_] = length( (sort{length($b) <=> length($a)} @{$data[$_]} )[0]) + 2 foreach (0..$#data);
$rowLength+= $maxLength[$_] foreach (0..$#{$temp[0]});
$rowLength+= $#data;